.exam_box {
    width: 100%;
    display: flex; /* 使用 Flexbox 布局 */
}

.problem-list {
    flex: 4; /* 占据 4 份 */
    /* background-color: bisque; */
    padding-left: 10px; 
    padding-right: 10px;
    box-sizing: border-box;
}

.problem {
    flex: 17; /* 占据 17 份 */
    /* background-color: aquamarine; */
    padding-left: 10px; 
    padding-right: 10px;
    float: left;
}

.submit-view {
    flex: 3; /* 占据 3 份 */
    /* background-color: lightcoral; */
    padding-left: 10px; 
    padding-right: 10px;
    box-sizing: border-box;
}

.card{
    height: calc(100vh - 40px);
    overflow-y: auto;
    box-shadow: 0 2px 12px 0 rgb(0 0 0 / 10%);
    border-radius: 4px;
    border: 1px solid #e6ebf5;
    background-color: #FFFFFF;
    overflow: hidden;
    color: #303133;
    -webkit-transition: 0.3s;
    transition: 0.3s;
    box-sizing: inherit;
}

.card_body{
    padding: 20px;
    overflow-y: auto;   /* 添加垂直滚动条 */
}
.card_title{
    font-size: 14px;
    font-weight: 700;
    padding: 10px 0 10px 0;
    box-sizing: inherit;
}
.card-box{
    display: flex;
    flex-wrap: wrap;
    align-content: flex-start;
    margin-left: -5px;
    box-sizing: inherit;
}
.itemView {
    display: flex;             /* 使用flex布局 */
    flex-wrap: wrap;          /* 允许换行 */
    gap: 10px;                /* 设置 item 之间的间距（可选） */
}
.item{
    width: 30px;
    height: 40px;
    background: #eee;
    border-radius: 2px;
    font-size: 12px;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    cursor: pointer;
    margin: 5px 5px 10px 5px;
    box-sizing: inherit;
}
.num{
    text-align: center;
    color: #555;
    font-weight: 700;
    padding: 3px;
    height: 20px;
    line-height: 14px !important;
}

.right{
    color: #fff;
    background: #67C23A;
}
.wrong{
    color: #fff;
    background: #F56C6C;
}
.current{
    border-radius: 2px;
    background: #FFBA00;
    color: #fff !important;
}
.flag{
    text-align: center;
    border-top: #fff 1px solid;
    padding: 3px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    background: #eee;
    box-sizing: inherit;
}
.down{
    background: #5175df;
}

.qu-box{
    margin-bottom: 20px;
    box-sizing: inherit;
    max-height: 700px;  
    overflow-y: auto; 
}

.score-bar{
    display: flex;
    background: #eee;
    line-height: 25px;
    padding: 5px;
    margin-bottom: 20px;
    box-sizing: inherit;
}

.mark{
    width: 50px;
    display: flex;
    -webkit-box-pack: end;
    justify-content: flex-end;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

.tooltip{
    cursor: pointer;
    font-family: 'element-icons' !important;
    speak: none;
    font-style: normal;
    font-weight: normal;
    font-variant: normal;
    text-transform: none;
    line-height: 1;
    vertical-align: baseline;
    display: inline-block;
    -webkit-font-smoothing: antialiased;
}

.qu-item{
    display: flex;
    margin-bottom: 20px;
}

.qu-num{
    display: inline-block;
    background: url() no-repeat 100% 100%;
    background-size: contain;
    height: 30px;
    width: 30px;
    line-height: 25px;
    color: #fff;
    font-size: 14px;
    text-align: center;
    margin-right: 15px;
    -ms-flex-negative: 0;
    flex-shrink: 0;
}
.qu-content{
    -webkit-box-flex: 1;
    -ms-flex-positive: 1;
    flex-grow: 1;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start;
    word-break: break-all;
}

.qu-answer-item{
    display: flex;
    border: #eee 1px solid;
    border-radius: 5px;
    line-height: 20px;
    margin: 15px 0px 15px 0px;
    padding: 10px;
    cursor: pointer;
    font-size: 14px;
}

.active{
    border: #5794f7 1px solid;
}

.tag{
    width: 10px;
    font-weight: 700;
    color: #0a84ff;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

.content{
    -webkit-box-flex: 1;
    -ms-flex-positive: 1;
    flex-grow: 1;
    padding-left: 10px;
}

.row{
    margin-left: -5px;
    margin-right: -5px;
    text-align: center;
    line-height: 30px;
    position: relative;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}
.col{
    padding-left: 5px;
    padding-right: 5px;
    width: 100%;
    float: left;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}
.time-cc{
    color: #ff0000;
    font-weight: 700;
    box-sizing: inherit;

}
.divider{
    display: block;
    height: 1px;
    width: 100%;
    margin: 24px 0;
    background-color: #DCDFE6;
    position: relative;
}

.submit-btn{
    -webkit-appearance: button;
    padding: 10px 20px;
    font-size: 14px;
    border-radius: 4px;
    color: #FFFFFF;
    background-color: #FFBA00;
    border-color: #FFBA00;
    display: inline-block;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    color: #606266;
    -webkit-appearance: none;
    text-align: center;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    outline: none;
    margin: 0;
    -webkit-transition: .1s;
    transition: .1s;
    font-weight: 400;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    padding: 12px 20px;
    font-size: 14px;
    border-radius: 4px;
}

.button{
    color: #C0C4CC;
    cursor: not-allowed;
    background-image: none;
    background-color: #FFFFFF;
    border-color: #e6ebf5;
    padding: 10px 20px;
    font-size: 14px;
    border-radius: 4px;
    display: inline-block;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    background: #FFFFFF;
    border: 1px solid #DCDFE6;
    border-color: #DCDFE6;
    color: #606266;
    -webkit-appearance: none;
    text-align: center;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    outline: none;
    margin: 0;
    -webkit-transition: .1s;
    transition: .1s;
    font-weight: 400;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    padding: 12px 20px;
    font-size: 14px;
    border-radius: 4px;
}

.button2{
    -webkit-appearance: button;
    padding: 10px 20px;
    font-size: 14px;
    border-radius: 4px;
    color: #FFFFFF;
    background-color: #1890ff;
    border-color: #1890ff;
    display: inline-block;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    background: #FFFFFF;
    border: 1px solid #DCDFE6;
    border-color: #DCDFE6;
    color: #606266;
    -webkit-appearance: none;
    text-align: center;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    outline: none;
    margin: 0;
    -webkit-transition: .1s;
    transition: .1s;
    font-weight: 400;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    padding: 12px 20px;
    font-size: 14px;
    border-radius: 4px;
}